leonard



(No Model.) 3 Sheets-Sheet l.

E. R. LEONARD. FIREPROOF FLOOR AND CEILING.

No. 582,428. Patented May 11, 1897.

ATTORNEY VENTOR 3 Sheets-Sheet; 2.

I B. R. LEONARD. FIRBPROOF FLOOR AND CEILING.

(No Model.)

N0'.- 582,428. 18888111811 May 11, 1897.

' FIG.

INVENTOR WITNESSES:

ATTOR N EY rn: man versus cu. Hom-umwwunws'rou, u u,

(No Model.) a sheets-sheer s.

E. R. LEONARD. FIRBPROOF FLOOR AND CEILING.

No. 582,428. l Patened May 1 1, 1897. l I

\ FH F11 d l a m* N [j 'P2' if mi INVENTOR f N H BY ATTORNEY UNITED STATES PATENT OEEicE.

ELoE'E. LEONARD, oF NEw YORK, N. Y.

AFIREPROOF FLOOR AND `CEILING.

SPECIFICATION forming part of Letters Patent No. 582,428, dated May 1 1, 1897'.

Application tied June 13,1896.

ToY LZZ whom, it may concern:

Be it known that I, ELOF R. LEONARD, a citizen of the United States, and a resident of New York city, in the county and State of New York, have invented certain new and useful Improvements in Fireproof Floors and Ceilings, of which the following is a specification.

My invention consists of improvements in flreproof beam-llings and ceilings,whereby it is designed to provide stronger floors and ceilingsof lighter weight and simpler construction, as hereinafter described, reference being made to the accompanying drawings, in which- Figure l is a perspective View of a bar of improved construction which I have devised for supporting beam-fillings and ceilings. Fig. 2 is a plan view of floor-beams with beamfilling and ceiling supporting bars and ceiling-slabs in position. Fig. 3 is an end view of the structure of Fig. 2, with a part broken out and shown in section on line 2 2, Fig. l, and a part having the cement filling included. Fig. 4 is a sectionv showing the arrangement of my improved supporting-bars carrying a ceiling underaslanting roof. Fig. 5 is a plan of door-beams with beam-filling and ceiling supporting bars and ceiling-slabs in position, as when arched beam-lling-supporting bars are used. Fig. 6 is an end View of the structure of Fig. 5, with a part broken out and. shown in section on line 3 3, Fig. 4, and with a part showing the cement filling. Fig. 7 is a plan view of floor-beams, beam-filling and ceiling supportin g bars, and ceiling and beamlling supporting slabs in position when the beam-filling and ceiling Vare supported separately by independent systems of bars, the beam-filling-supporting bars being arched. Fig. 8 is an end elevation of the structure of Fig. 7 partly covered with beam-filling. Fig. 9 is an end elevation of part of a floor structure in which separate systems of bars are employed for the ceiling and beam-filling, the bars for the latter being straight. Fig. 10 is a front view, Fig. 1l a side view, and Fig. l2 an end View, of standards for the beam-{illing-supporting bars when a system of beamfilling-supporting bars is used above the ceil- Serial No. 595,444. (No model.)

ing-supporting bars. Fig. 13 is a side view of standard and part of a cross-bar, showing the arrangement when'a separate upper system of cross-bars is used for the floor-support. Fig. 14 is a transverse section of a cross-bar and a side view of an intermediate in the arrangement of Fig. 8. v

In the drawings, ct represents metallic iioorbeams of the. common form now generally used for supporting the floors and ceilings. As at present constructed the freproof filling between these beams is so heavy as to materially lessen the reserve supporting power for goods, and the ceilings are constructed in a way to be unnecessarily heavy with plaster or cement filling, which it is the purpose of my invention to improve by making them lighter and to simplify and cheapen the same.

In the iirst place I employ strong and light cross-bars for traversing the spaces between the floor-beams and resting on them, said bars consisting of sheet metal folded and bent substantially as shown in the drawings, whereof Fig. l is an enlarged view of a straight bar, in rwhich the essential features of its construction are more clearly shown. In Figs. 2 and 3 additional elements for greater strength are represented, and in Figs. 5 and 8 the said improved bar is represented in arched form, as it may be shaped in some cases for the additional supporting power due to such form. 'In the construction of said improved crosslbar a thin sheet of metal of suitable length and width is taken and bent double at the middle b to form vertical webs c side by side in close contact with each other. It is also bent at e c to form horizontal converse shoulder-webs f. It is also bent again at g g to form downwardly-converging webs h, and it is also bent again at i t' to form lateral baselianges j.

In some cases notches k are made in the endsv of the bars for engaging them with the lower flanges of the floor-beams, so that the lower parts of the cross-bars will reach lower than the floor-beams for carrying ireproof ceiling under1 the beams for their protection, as represented in Figs. 3, 8, and 9, and when so notched reinforcing-plates Z will be inserted between the end portions of vertical webs IOO door-beams, as in Figs. 5 and 6, is designated by reference-letter B, and B designates the arched bars supported above the said lower` flanges, as in Figs. 7 and 8.

The bars A will in some cases be further reinforced by a truss m and `hanger n to, strengthen them intermediately of the ends, the end reinforcing-plates .l being .suitably extended upward for riveting the foot ends of the truss-bars m to their upper ends, as at l', Fig. 2. Besides being riveted to the parts cof the bars A the hangers may have the heads o below the danses j foradditionaisup port.

vCeiling-slabs 1o, of slate A.or `other suitable material, are to "be placed on the angesj of the cross-bars and covered .on the under side with a thin coat of plaster, of which ,a thickness suficient to conceal the `joints and .the flanges j only is necessary, which, together with the thin slabs of vslate or tiles that can be used, make .a light reproof eeiling. When the iioor is of moderate depth for snpporting only light weight, the cement, concrete., or `other filling material may be placed directly on the ceiling-slabs, asin Figs and 6., but in floors ,having .deeperv door-beams a for suppOrt'ing great weight and in which there is morespaee than is needed for the required depth of fiil'l'ingcements I provide other cross-bars, as A `or B", `Figs. .9 and V8, which I support above the ceiling-supporting bars `A bystandards t, on which thelsaid filling `S 'is carried by tiles or `slabs q', placed on the .shoulders jj, as in Fig. ,9, when straight bars Vare used; but when arched bars, `as B', are used it is preferable, owing to the greater expense of making such bars, to use Yless Vof them by placing them farther ,apart than the slabs can reach with safety and using bars A2 of like form as bars A, but placed intermediate of and extending from one to another of bars B and resting at .the ends on them with the tiles or `slabs q2 supported .on their flanges j, asin Fig. 8,. In this ease the notches in the ends of the bars will be shaped in con!A formity with the .shape of parts c, f, `.and hof bars B and so .that parts of .barsQ-i2 will rest on shoulders f of bars B' andiparts .h of said bars A2 will rest on iiangesj.' (See Fig. 1.4.) The standards t for supporting these `ripper cross-bars .are represented in .detail ,and on an enlarged scale in Figs. 10, l1, and 12. They consist .of T-bars, which `have the lower ends of the middle webs .suitably shaped for `and being inserted 5in the slotted endslof thecrossbars A and resting on the ilan ges of .the floorbeams to reinforce said crossbars same as plates Z, and the upper ends have extensions u of the middle web inserted in like slots of the bars A', together with flanges fu, formed of the head-plate w `oi the T and projecting lengthwise of the cross-beams into slots a: of said bars under the shoulders f for substan- -tial support of the cross-bars when riveted through the webs c of the cross-bars and said parts u of `the standards, said standards being arranged with the head-plates w of the T against the webs of the door-beams.

When required, the cross-bars A' may be reinforced for support intermediate of their ends by the inverted trusses y e.

In Fig. 4 I represent the cross-bars A suspended from `a slanting roof, as they may be used for supporting the ceiling-slabs p of the 'ceiling directly under the roof where iioorbeams are not fused, with .concrete above the slabs- I claim as my invention- `1. ,The oombnationof thesheet-meta'lsup porting-bar, the truss 4supporting the :midde portion .of the bar, said truss having its ends connected with the ends ofthe bar by the :reiniorcingplates `of `said ends of bar substantially as described.

2,. The .combination with .the door-beams, of f the sheetmetal cross-bars having the divergentflanges and the ceiling-.slabs -p ,supported on said anges below the edges-of the Hoor-beams, said cross-bars being notched lin the ends to 'engage the flanges of 1100!- ,beams and having the renforcingplates substantially as described.

3. The combination with the door-beams, of sheet-metal cross-bare .having .divergent flanges j, and suplponted .on the lower anges of the beams, ot er cross-bane of like ebnstruction located above those .ensei-d beamfianges and supported by standards .t placed between `and riveted to members c of both upper tand lower .cross-bars and having foot-rests on the anges of the door-beams", the ceiling slabs supported on the lower cross-bars and the beam-filling 1slabslon the :upper `cross-bars substantially 'as described.

IOO

IIO

4. 'The combination with the oorebeams substantially as described.

The combination with the 1001'beams, -.ef .the .cross -bars Supported on the -Lo-,wer anges `of the tloonbeams Aand supporting the cei1ingslabs, the upper arched 4erossdoars supported on the standards fitted between and riveted to the members c of said lower Signed at New York'city, in the county and upper cross-bars, and having foot-rests and State of New York, this lst day of June, on the beam-Hanges, and the bars A2 placed A. D. 1896.

between and supported at their ends on the ELOF R. LEONARD. 5 said arched cross-bars and having the beam- Witnesses:

filling tiles supported on their flanges j,-sub WV. J. MORGAN,

stantially as described. A. P. THAYER. 

